CN206096449U - Piezoceramics piece and have ultrasonic sensor of this piezoceramics piece - Google Patents
Piezoceramics piece and have ultrasonic sensor of this piezoceramics piece Download PDFInfo
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- CN206096449U CN206096449U CN201621050860.7U CN201621050860U CN206096449U CN 206096449 U CN206096449 U CN 206096449U CN 201621050860 U CN201621050860 U CN 201621050860U CN 206096449 U CN206096449 U CN 206096449U
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- ceramic piece
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- 239000000919 ceramic Substances 0.000 claims description 42
- 229910052751 metal Inorganic materials 0.000 claims description 32
- 239000002184 metal Substances 0.000 claims description 32
- 230000001953 sensory effect Effects 0.000 claims description 28
- 230000002093 peripheral effect Effects 0.000 claims description 20
- 230000010412 perfusion Effects 0.000 claims description 9
- 241000237983 Trochidae Species 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 230000035945 sensitivity Effects 0.000 abstract description 11
- 238000001514 detection method Methods 0.000 description 11
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000003854 Surface Print Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 230000002463 transducing effect Effects 0.000 description 1
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- Transducers For Ultrasonic Waves (AREA)
Abstract
The utility model provides a piezoceramics piece, which comprises a plate body, is the plate body the rectangle sheet structure, and the length of plate body is 6mm are 7mm, width 5mm are 6mm, thickness 0.1mm 0.15mm, the plate body be formed with positive electrode and negative electrode on the surface, the positive electrode with be equipped with the insulated tape between the negative electrode. The utility model discloses still provide and have the ultrasonic sensor of piezoceramics piece. The utility model discloses ultrasonic sensor is through being the piezoceramics chip layout rectangle sheet structure, and the sensitivity that improves the sensor guarantees that the normal range finding of sensor is not disturbed, and secondly, two electrodes among this ultrasonic sensor all form on the piezoceramics piece to the through the electrode pin is connected with the power, with the stability that improves the sensor.
Description
Technical field
The utility model is related to a kind of detection means, more particularly to a kind of piezoelectric ceramic piece and with the piezoelectric ceramic piece
Ultrasonic sensor.
Background technology
Ultrasonic sensor is the sensor developed using the characteristic of ultrasonic wave.Ultrasonic wave is that a kind of vibration frequency is high
In the mechanical wave of sound wave, occurred to vibrate what is produced under the excitation of voltage by transducing chip, it has, and frequency is high, wavelength is short, around
Penetrate phenomenon little, particularly good directionality, ray can be become and the features such as direction propagation.Ultrasonic wave is penetrated to liquid, solid
Ability is very big, and especially in the opaque solid of sunlight, it can penetrate tens meters of depth.Ultrasonic wave encounters impurity or boundary
Face can produce significantly to reflect to form and be reflected into echo, and encountering mobiles can produce Doppler effect.Ultrasound examination extensively should
Used in aspects such as industry, national defence, biomedicines, it is particularly useful for automobile automated parking system.Using ultrasonic wave as detection means, must
Ultrasonic wave must be produced and ultrasonic wave is received, the device for completing this function is exactly ultrasonic sensor, and traditionally referred to as ultrasound is changed
Energy device, or ultrasonic probe, ultrasonic sensor mainly includes metal shell and the piezoelectric chip in metal shell
(i.e. piezoelectric ceramic piece), piezoelectric chip can both launch ultrasonic wave, it is also possible to receive ultrasonic wave.
Disc-shaped structure, Oscillation Amplitude when producing ultrasonic wave are adopted piezoelectric ceramic piece in existing ultrasonic sensor more
And vibration frequency is weaker, and then the sensitivity of reduction ultrasonic sensor, affect the ultrasonic sensor to be applied to automobile certainly
The detection accuracy of dynamic parking system detection range；Secondly, the electrode and piezoelectric ceramic piece in existing ultrasonic sensor
Connection, another electrode is connected with metal shell, and the structural stability is poor, during generation ultrasonic wave, interference free performance is weak, noise compared with
Greatly, so reduce ultrasonic sensor sensitivity.Existing ultrasonic sensor can meet to be applied in reversing automobile, is passed through
Ultrasonic sensor sensing detection reversing safe distance.But in automobile lane change, for the excessively near automobile in rear due to
There is a visual angle blind zone in rearview mirror, it is difficult to it was observed that the vehicle pressed close to is driven fast very much at rear, thus, easily cause the collision of two cars occurring
Security incident, therefore, vapour window side install detection sensitivity it is high for sensing vehicle to remind lane change security
Ultrasonic sensor is a practical product of real need.
The content of the invention
In view of the above, the utility model is necessary to provide a kind of raising detection sensitivity high piezoelectric ceramic piece.
The technical scheme that the utility model is provided is as follows：A kind of piezoelectric ceramic piece, including plate body, the plate body is rectangle
Laminated structure, and the length of plate body be 6mm-7mm, width be 5mm-6mm, thickness be 0.1mm-0.15mm, the table of the plate body
Positive electrode and negative electrode are formed with face, between the positive electrode and the negative electrode insulating tape is provided with.
Further, the length of the plate body be 6.5mm, width be 5.5mm, thickness be 0.12mm.
In addition, the utility model is necessary to provide a kind of ultrasonic sensor with the piezoelectric ceramic piece.
A kind of ultrasonic sensor, including housing and the sensory package that is arranged in housing, the sensory package includes
Metal shell, the piezoelectric ceramic piece in metal-back, two electrode pins being connected on piezoelectric ceramic piece, it is arranged on metal
Noise reduction layer and envelope in housing is filled in the perfusion layer in metal shell.
Further, the noise reduction layer is arranged in metal shell, and is covered on piezoelectric ceramic piece, and noise reduction layer is noise reduction
Sponge.
Further, the housing is formed with an accommodating cavity, and sensory package is arranged on described accommodating by a rubber washer
In chamber, metal shell includes diapire and the side wall being formed on diapire, and side wall ends are formed with two clampings projection, the rubber cushion
Installed in two clamping high spots of metal shell, each clamping is raised vertically to extend laterally circle along side wall ends, two cards
Hold raised symmetrical with regard to the center line of side wall.
Further, the diapire is discoideus structure, clamping chamber is formed with diapire, so that piezoelectric ceramic piece is fastened on
On diapire.
Further, the perfusion layer envelope is filled in metal shell, and seals up the noise reduction layer, and the perfusion layer is adopted
Silica gel, and irrigate the outer surface of layer and the side wall ends keeping parallelism of metal shell.
Further, the housing includes body, and body includes mounting shell and is formed in inserting on mounting shell outer peripheral face
Joint, is provided with jointing on mounting shell, connection-peg includes plug, and plug is accordingly connected with jointing, and two electrodes draw
One end correspondence of pin is connected on the positive electrode of piezoelectric ceramic piece and negative electrode, and the other end and the jointing of two electrode pins connect
Connect.
Further, the housing includes being arranged on the top shell of body upper part and is removably disposed in body lower part
Drain pan, mounting shell includes assembly wall, and some buckles are equidistantly distributed with the outer peripheral face of assembly wall, to install the drain pan,
Drain pan includes end wall and the linking arm being formed on end wall, and the card being engaged with the buckle on assembly wall is offered on linking arm
Groove, the inner surface of end wall and the diapire outer face of sensory package against.
Further, the mounting shell includes the perisporium that is formed on assembly wall and is formed in assembly wall being connected with perisporium
Place supports wall, and assembly wall and supports and formed between wall the accommodating cavity, supports wall to support sensory package, supports on wall
Offer through hole, for sensory package in two electrode pins be connected with jointing through through hole, to support right on wall bottom surface
It is formed with two positioning convex with claiming, to position to sensory package, edge supports the bottom surface of wall to assembly wall per positioning protrusion
End extends and parallel with assembly wall end.
Compared with prior art, the utility model ultrasonic sensor by piezoelectric ceramic piece by being designed as rectangle sheet
Structure, reduces the detection blind area of sensor, improves the sensitivity of sensor, it is ensured that the normal range finding of sensor is not disturbed, its
Secondary, two electrodes in the ultrasonic sensor are both formed on piezoelectric ceramic piece, and are connected with power supply by electrode pin, to carry
The stability of high sensor.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model ultrasonic sensor；
Fig. 2 is the decomposition texture schematic diagram of the utility model ultrasonic sensor；
Fig. 3 is the structural representation at another visual angle of the body in Fig. 2 in housing；
Fig. 4 is the longitudinal cross-section view of sensory package in Fig. 1；
Fig. 5 is the topology view of piezoelectric ceramic piece in Fig. 4.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment, in the case where not conflicting, the feature in embodiment and embodiment in the application can be mutually combined, below will ginseng
Examine accompanying drawing and in conjunction with the embodiments describing the utility model in detail.
Refer to shown in Fig. 1, Fig. 2, a kind of ultrasonic sensor, pacify for automobile automated parking system or lane change spacing
Full monitoring system, to realize ultrasonic listening distance, including housing 10 and the sensory package 20 that is arranged in housing 10.
Fig. 2, Fig. 3 are referred to, housing 10 includes body 11, is arranged on the top shell 13 on the top of body 11 and is arranged on body
The drain pan 12 of 11 bottoms.Body 11 includes mounting shell 111 and the connection-peg 112 being formed on the outer peripheral face of mounting shell 111.
Mounting shell 111 is tubular structure, to install sensory package 20.Mounting shell 111 includes lower peripheral wall 1111, is formed in
Upper perimeter wall 1112 in lower peripheral wall 1111 and be formed in lower peripheral wall 1111 and the junction of upper perimeter wall 1112 support wall 1113, and
Lower peripheral wall 1111 and supporting forms an accommodating cavity (figure is not marked) between wall 1113, to house sensory package 20；Lower peripheral wall 1111
Outer peripheral face on be formed with some buckles 1114, to install drain pan 12, in the present embodiment, buckle 1114 is 3 and equidistantly
It is distributed in lower peripheral wall 1111 on outer peripheral face；The inner peripheral surface of upper perimeter wall 1112 is provided with jointing 1117, jointing 1117
One end be connected with connection-peg 112, the other end of jointing 1117 connects for sensory package 20；Wall 1113 is supported to support
Sensory package 20 is held, is supported and through hole 1115 is offered on wall 1113, so that sensory package 20 is connected with jointing 1117, supported
Wall 1113 is formed with positioning convex 1116 on bottom surface, to position to sensory package 20, prevents sensory package 20 in mounting shell 10
Inside move back and forth, to improve the sensitivity of sensor, positioning convex 1116 is two and is symmetrically formed at and supports the bottom of wall 1113
On face, per positioning protrusion 1116 along support the bottom surface of wall 1113 extend to the end of lower peripheral wall 1111 and with the end of lower peripheral wall 1111
It is parallel.
Connection-peg 112 is integrally formed on the outer peripheral face of upper perimeter wall 1112 of mounting shell 111, to connect with the external circuit board
Connect, to ensure the normal work of sensor, specifically, connection-peg 112 includes grafting shell 1121 and is arranged on grafting shell 1121
Interior plug (not shown), plug is accordingly connected with the jointing 1117 of the inner peripheral surface of upper perimeter wall 1112, plug to electricity
Road plate connection.
Drain pan 12 is detachably connected in the lower peripheral wall 1111 of body 11, to facilitate sensory package 20 is encapsulated or torn open
Under, specifically, drain pan 12 includes end wall 121 and the linking arm 122 that is formed on end wall 121, offer on linking arm 122 with
The draw-in groove 1221 that buckle 1114 in lower peripheral wall 1111 is engaged, so that the compact next week installed in the bottom of body 11 of drain pan 12
On wall 1111, and the outer face of the inner surface of end wall 121 and sensory package 20 is against further to improve the steady of sensory package 20
It is qualitative.
The lid of top shell 13 is located at the top of upper perimeter wall 1112 of body 11.
Refer to Fig. 2, Fig. 4, sensory package 20 is arranged in the accommodating cavity of body 11, and by drain pan 12 by sensory package
20 fix, and in the present embodiment, sensory package 20 is arranged in the accommodating cavity of housing 10, to improve sensing by a rubber washer 30
The shock resistance and stability of component 20.Sensory package 20 penetrates ultrasonic wave to receive and dispatch, sensory package 20 include metal shell 21,
Piezoelectric ceramic piece 22 in metal-back 21, two electrode pins 23 being connected on piezoelectric ceramic piece 22, it is arranged on metal
Noise reduction layer 24 and envelope in housing 21 is filled in the perfusion layer 25 in metal shell 21.
Metal shell 21 is made using the aluminum alloy materials of corrosion resistance, and metal shell 21 is one end open, another end seal
The shell-like structure for closing, including diapire 211 and the side wall 212 that is formed on diapire 211, diapire 211 is discoideus structure, diapire
Clamping chamber (figure is not marked) is formed with 211, so that piezoelectric ceramic piece 22 is fastened in the clamping chamber of diapire 211, in the present embodiment,
Clamping chamber is rectangular cavity.The outer face of diapire 211 is resisted against at the inner surface of end wall 121 of drain pan 12 when in drain pan 12,
To improve stability；Side wall 212 is formed on diapire 211, and it is raised that the end of side wall 212 outside is formed with two clampings
2121, rubber gasket 30 is arranged at two clampings raised 2121 in the outside of metal shell 21, to facilitate rubber washer 30 to be fastened on gold
On category housing 21, and then metal shell 21 is held in housing 10.In the present embodiment, each clamping projection 2121 is along side wall
212 end verticals extend laterally, and two clamping projections 2121 are symmetrical with regard to the center line of side wall 212.
Piezoelectric ceramic piece 22 is attached on the surface in the clamping chamber on diapire 211, penetrates ultrasonic wave to receive and dispatch, piezoelectric ceramics
Piece 22 can mutually change mechanical energy with electric field energy, and specifically, when alternating signal is loaded, piezoelectric ceramic piece 22 is flexible and drives
The diapire 211 of metal shell 21 vibrates, and synchronous pulse ultrasonic wave is sent with the promotion of pulse signal.Please refer to figure
5, piezoelectric ceramic piece 22 includes plate body 224, and plate body 224 is rectangle laminated structure, and the length of plate body 224 is 6mm-7mm, width
It is 0.1mm-0.15mm for 5mm-6mm, thickness, it is preferable that the length of plate body 224 is 6.5mm, width is 5.5mm, thickness is
0.12mm, can improve the sensitivity of sensor；Positive electrode 221 and negative electrode 222, positive electrode are formed with the surface of plate body 224
Insulating tape 223 is provided between 221 and negative electrode 222.
Piezoelectric ceramic piece 22 is prepared via a method which：
Step 1：Dispensing, by formula rate some raw material are weighed；
Step 2：Mixed grinding, the various raw materials in step 1 is mixed levigate；
Step 3：Granulating and forming, by the powder being well mixed of step 2 particle of highdensity good fluidity is formed, and will
The particulate material pressure for making forms the blank of required prefabrication size；
Step 4：Sintering, blank made by step 3 is sintered in batch-type furnace with 1200 DEG C to 1300 DEG C of elevated-temperature seal
Into porcelain, 50 minutes to 60 minutes are incubated, and along with the furnace cooling；
Step 5：Silver ink firing polarizes, and the potsherd surface printing silver paste of step 4 sinter molding in being placed in heating furnace, rises
Temperature is cooled to room temperature to 700 DEG C to 800 DEG C, insulation 9 minutes to 12 minutes, and poling temperature is 100 DEG C, and the polarization time is 15 points
Clock, polarized electric field is 3KV/mm, to form positive electrode 221 and negative electrode 222.
Referring to Fig. 4, one end correspondence of two electrode pins 23 is connected to the positive electrode 221 of piezoelectric ceramic piece 22 and bears
On electrode 222, the other end of two electrode pins 23 is connected through through hole 1115 with jointing 1117, improves stablizing for sensor
Property, it is ensured that the normal work of piezoelectric ceramic piece 22.
Noise reduction layer 24 is arranged in metal shell 21, and is covered on piezoelectric ceramic piece 22, to piezoelectric ceramic piece 22
Damping and silencing, specifically, piezoelectric ceramic piece 22 occurs after dither, can be to radiating surface (diapire 211 of metal shell 21) side
To ultrasonic wave is sent, the function of detection range is realized, but while also can be to radiating surface opposite direction generation ultrasonic signal, in order to not
The ultrasonic wave normal work of radiating surface, the reciprocal ultrasonic wave of radiating surface is affected to eliminate, this noise reduction layer 24 can absorb radiation
The reciprocal ultrasonic wave in face, it is ensured that the normal range finding of sensor is not disturbed.In the present embodiment, noise reduction layer 24 is noise reduction sponge.
The perfusion envelope of layer 25 is filled in metal shell 21, and seals up noise reduction layer 24, to improve the waterproof and dustproof of sensor
Can, and further improve the sensitivity of sensor.Perfusion layer 25 adopts silica gel, and irrigates the outer surface and metal shell 21 of layer 25
The end keeping parallelism of side wall 212.
The connection-peg 112 of the ultrasonic sensor is connected with power supply, when lane change enters blind area, sensor loading alternation letter
Number, piezoelectric ceramic piece 22 is flexible and dither occurs, and then drives the diapire 211 of metal shell 21 to vibrate, and with pulse
The promotion of signal to the direction of diapire 211 sends synchronous pulse ultrasonic wave, realizes the function of detection range, but while also can be the bottom of to
The opposite direction of wall 211 produces ultrasonic signal, and the ultrasonic signal is absorbed by noise reduction layer 24, and the vibration to diapire 211 was carried out
Filter, effectively to reduce the aftershock of sensor, reduces the detection blind area of sensor, improves the sensitivity of sensor, it is ensured that sensor
Normal range finding it is not disturbed, improve automobile security performance.
In sum, the utility model ultrasonic sensor is by piezoelectric ceramic piece by being designed as rectangle laminated structure,
Improve the sensitivity of sensor, it is ensured that the normal range finding of sensor is not disturbed, secondly, two electrodes in the ultrasonic sensor
It is both formed on piezoelectric ceramic piece, and is connected with power supply by electrode pin, improves the stability of sensor.
Embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited, it is every
The equivalent structure made using the utility model description or equivalent flow conversion, or directly or indirectly it is used in other phases
The technical field of pass, is included in the same manner in scope of patent protection of the present utility model.
Claims (10)
1. a kind of piezoelectric ceramic piece, including plate body (224), it is characterised in that：The plate body (224) is rectangle laminated structure,
And the length of plate body (224) be 6mm-7mm, width be 5mm-6mm, thickness be 0.1mm-0.15mm, the table of the plate body (224)
Positive electrode (221) and negative electrode (222) are formed with face, are provided between the positive electrode (221) and the negative electrode (222) absolutely
Marginal zone (223).
2. piezoelectric ceramic piece according to claim 1, it is characterised in that：The length of the plate body (224) is 6.5mm, width
It is 0.12mm to spend for 5.5mm, thickness.
3. a kind of ultrasonic sensor, including housing (10) and the sensory package (20) being arranged in housing (10), the biography
Sense component (20) including metal shell (21), the piezoelectric ceramic piece (22) in metal shell (21), be connected to piezoelectricity pottery
Two electrode pins (23) on ceramics (22), the noise reduction layer (24) being arranged in metal shell (21) and envelope are filled in metal shell
(21) the perfusion layer (25) in, it is characterised in that：Pressure of the piezoelectric ceramic piece (22) described in any one of claim 1 to 2
Electroceramics piece.
4. ultrasonic sensor according to claim 3, it is characterised in that：The noise reduction layer (24) is arranged on metal shell
(21) in, and it is covered on piezoelectric ceramic piece (22), noise reduction layer (24) is noise reduction sponge.
5. ultrasonic sensor according to claim 3, it is characterised in that：The housing (10) is formed with an accommodating cavity,
Sensory package (20) by a rubber washer (30) in the accommodating cavity, metal shell (21) including diapire (211) with
And the side wall (212) being formed on diapire (211), side wall (212) end is formed with two clampings projection (2121), the rubber gasket
(30) installed in two clampings projection (2121) place of metal shell (21), each clamping projection (2121) is along side wall (212)
End vertical extends laterally, and two clampings projection (2121) are symmetrical with regard to the center line of side wall (212).
6. ultrasonic sensor according to claim 5, it is characterised in that：The diapire (211) is discoideus structure, bottom
Wall is formed with clamping chamber on (211), so that piezoelectric ceramic piece (22) is fastened on diapire (211).
7. ultrasonic sensor according to claim 5, it is characterised in that：Perfusion layer (25) envelope is filled in metal shell
(21) in, and the noise reduction layer (24) is sealed up, perfusion layer (25) adopts silica gel, and irrigates the outer surface and gold of layer (25)
Side wall (212) the end keeping parallelism of category housing (21).
8. ultrasonic sensor according to claim 5, it is characterised in that：The housing (10) includes body (11), this
Body (11) includes mounting shell (111) and the connection-peg (112) being formed on mounting shell (111) outer peripheral face, on mounting shell (111)
Jointing (1117) is provided with, including plug, plug is accordingly connected connection-peg (112) with jointing (1117), and two is electric
One end correspondence of pole pin (23) is connected on the positive electrode of piezoelectric ceramic piece (22) (221) and negative electrode (222), and two electrodes draw
The other end of pin (23) is connected with jointing (1117).
9. ultrasonic sensor according to claim 8, it is characterised in that：The housing (10) is including being arranged on body
(11) top shell (13) on top and the drain pan (12) of body (11) bottom is removably disposed in, mounting shell (111) is including peace
Dress wall (1111), is equidistantly distributed with some buckles (1114), to install the drain pan on the outer peripheral face of assembly wall (1111)
(12), drain pan (12) includes end wall (121) and the linking arm (122) being formed on end wall (121), and linking arm is opened on (122)
It is provided with the draw-in groove (1221) being engaged with the buckle (1114) on assembly wall (1111), inner surface and the sensing group of end wall (121)
Diapire (211) outer face of part (20) against.
10. ultrasonic sensor according to claim 9, it is characterised in that：The mounting shell (111) is including being formed in peace
Perisporium (1112) on dress wall (1111) and be formed in assembly wall (1111) and perisporium (1112) junction support wall
(1113), and assembly wall (1111) form the accommodating cavity between wall (1113) with supporting, wall (1113) is supported to support biography
Sense component (20), supports and through hole (1115) is offered on wall (1113), for two electrode pins (23) in sensory package (20)
Be connected with jointing (1117) through through hole (1115), support and two convexes be asymmetrically formed on wall (1113) bottom surface
Rise (1116), to position to sensory package (20), per positioning protrusion (1116), edge supports the bottom surface of wall (1113) to installation
Wall (1111) end extends and parallel with assembly wall (1111) end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621050860.7U CN206096449U (en) | 2016-09-12 | 2016-09-12 | Piezoceramics piece and have ultrasonic sensor of this piezoceramics piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621050860.7U CN206096449U (en) | 2016-09-12 | 2016-09-12 | Piezoceramics piece and have ultrasonic sensor of this piezoceramics piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206096449U true CN206096449U (en) | 2017-04-12 |
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ID=58475227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621050860.7U Active CN206096449U (en) | 2016-09-12 | 2016-09-12 | Piezoceramics piece and have ultrasonic sensor of this piezoceramics piece |
Country Status (1)
| Country | Link |
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| CN (1) | CN206096449U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106199615A (en) * | 2016-09-12 | 2016-12-07 | 广州市佑航电子有限公司 | Piezoelectric ceramic piece and there is the ultrasonic sensor of this piezoelectric ceramic piece |
| CN109290161A (en) * | 2018-09-10 | 2019-02-01 | 苏州涵轩信息科技有限公司 | Ultrasonic generator and its assemble method |
-
2016
- 2016-09-12 CN CN201621050860.7U patent/CN206096449U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106199615A (en) * | 2016-09-12 | 2016-12-07 | 广州市佑航电子有限公司 | Piezoelectric ceramic piece and there is the ultrasonic sensor of this piezoelectric ceramic piece |
| CN109290161A (en) * | 2018-09-10 | 2019-02-01 | 苏州涵轩信息科技有限公司 | Ultrasonic generator and its assemble method |
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